[INFO] cloning repository https://github.com/bekyiu/rust-linklist [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bekyiu/rust-linklist" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbekyiu%2Frust-linklist", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbekyiu%2Frust-linklist'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9dbfc255aeaaa5e1fc3a379a74479a732c0fd4b2 [INFO] checking bekyiu/rust-linklist/9dbfc255aeaaa5e1fc3a379a74479a732c0fd4b2 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbekyiu%2Frust-linklist" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bekyiu/rust-linklist on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/bekyiu/rust-linklist [INFO] finished tweaking git repo https://github.com/bekyiu/rust-linklist [INFO] tweaked toml for git repo https://github.com/bekyiu/rust-linklist written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/bekyiu/rust-linklist already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 75aeb22351205474f93f4e96879f785e195243abe5480d0f5df7571222f93403 [INFO] running `Command { std: "docker" "start" "-a" "75aeb22351205474f93f4e96879f785e195243abe5480d0f5df7571222f93403", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "75aeb22351205474f93f4e96879f785e195243abe5480d0f5df7571222f93403", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "75aeb22351205474f93f4e96879f785e195243abe5480d0f5df7571222f93403", kill_on_drop: false }` [INFO] [stdout] 75aeb22351205474f93f4e96879f785e195243abe5480d0f5df7571222f93403 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9e720c5f39181dbe8082d6f538b1390a4b9404736b2a98f137f50b3f2979d749 [INFO] running `Command { std: "docker" "start" "-a" "9e720c5f39181dbe8082d6f538b1390a4b9404736b2a98f137f50b3f2979d749", kill_on_drop: false }` [INFO] [stderr] Checking rust-linklist v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/bin/list1.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | Elem(i32, Box), [INFO] [stdout] | ---- ^^^ ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 4 | Elem((), ()), [INFO] [stdout] | ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/bin/list8.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Link` is never used [INFO] [stdout] --> src/bin/list8.rs:9:6 [INFO] [stdout] | [INFO] [stdout] 9 | type Link = Option>>; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `List` is never constructed [INFO] [stdout] --> src/bin/list8.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | struct List { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `push_left`, `pop_left`, and `peek_left` are never used [INFO] [stdout] --> src/bin/list8.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 16 | impl List { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 17 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | fn push_left(&self, elem: T) -> List { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 52 | fn pop_left(&self) -> List { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 63 | fn peek_left(&self) -> Option<&T> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Iter` is never constructed [INFO] [stdout] --> src/bin/list8.rs:73:8 [INFO] [stdout] | [INFO] [stdout] 73 | struct Iter<'a, T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `iter` is never used [INFO] [stdout] --> src/bin/list8.rs:79:8 [INFO] [stdout] | [INFO] [stdout] 78 | impl List { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] 79 | fn iter(&self) -> Iter { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> src/bin/list1.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | Elem(i32, Box), [INFO] [stdout] | ---- ^^^ ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 4 | Elem((), ()), [INFO] [stdout] | ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/bin/list3.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `elem` and `next` are never read [INFO] [stdout] --> src/bin/list2.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 3 | elem: i32, [INFO] [stdout] | ^^^^ [INFO] [stdout] 4 | next: Link, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Link` is never used [INFO] [stdout] --> src/bin/list3.rs:10:6 [INFO] [stdout] | [INFO] [stdout] 10 | enum Link { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `List` is never constructed [INFO] [stdout] --> src/bin/list3.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | struct List { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/bin/list2.rs:10:10 [INFO] [stdout] | [INFO] [stdout] 10 | More(Box), [INFO] [stdout] | ---- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Link` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 10 | More(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `push_left`, and `pop_left` are never used [INFO] [stdout] --> src/bin/list3.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 20 | impl List { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 21 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 28 | fn push_left(&mut self, value: i32) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | fn pop_left(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `head` is never read [INFO] [stdout] --> src/bin/list2.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct List { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 15 | head: Link, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/bin/list4.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Link` is never used [INFO] [stdout] --> src/bin/list4.rs:8:6 [INFO] [stdout] | [INFO] [stdout] 8 | type Link = Option>; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `List` is never constructed [INFO] [stdout] --> src/bin/list4.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | struct List { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `push_left`, and `pop_left` are never used [INFO] [stdout] --> src/bin/list4.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 15 | impl List { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 16 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | fn push_left(&mut self, value: i32) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 37 | fn pop_left(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `elem` and `next` are never read [INFO] [stdout] --> src/bin/list7.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 5 | elem: T, [INFO] [stdout] | ^^^^ [INFO] [stdout] 6 | next: Link, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `head` is never read [INFO] [stdout] --> src/bin/list7.rs:43:5 [INFO] [stdout] | [INFO] [stdout] 42 | struct List { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 43 | head: Link, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/bin/list6.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Link` is never used [INFO] [stdout] --> src/bin/list6.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | type Link = Option>>; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `List` is never constructed [INFO] [stdout] --> src/bin/list6.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | struct List { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `push_left`, `pop_left`, `peek_left`, and `peek_left_mut` are never used [INFO] [stdout] --> src/bin/list6.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 14 | impl List { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 15 | fn new() -> Self <> { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | fn push_left(&mut self, value: T) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | fn pop_left(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | fn peek_left(&self) -> Option<&T> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 52 | fn peek_left_mut(&mut self) -> Option<&mut T> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `IntoIter` is never constructed [INFO] [stdout] --> src/bin/list6.rs:74:8 [INFO] [stdout] | [INFO] [stdout] 74 | struct IntoIter(List); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `into_iter` is never used [INFO] [stdout] --> src/bin/list6.rs:77:12 [INFO] [stdout] | [INFO] [stdout] 76 | impl List { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] 77 | pub fn into_iter(self) -> IntoIter { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Iter` is never constructed [INFO] [stdout] --> src/bin/list6.rs:93:8 [INFO] [stdout] | [INFO] [stdout] 93 | struct Iter<'a, T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `iter` is never used [INFO] [stdout] --> src/bin/list6.rs:101:8 [INFO] [stdout] | [INFO] [stdout] 98 | impl List { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 101 | fn iter(&self) -> Iter { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `IterMut` is never constructed [INFO] [stdout] --> src/bin/list6.rs:126:8 [INFO] [stdout] | [INFO] [stdout] 126 | struct IterMut<'a, T> { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `iter_mut` is never used [INFO] [stdout] --> src/bin/list6.rs:132:8 [INFO] [stdout] | [INFO] [stdout] 131 | impl List { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] 132 | fn iter_mut(&mut self) -> IterMut { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `elem` and `next` are never read [INFO] [stdout] --> src/bin/list2.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 3 | elem: i32, [INFO] [stdout] | ^^^^ [INFO] [stdout] 4 | next: Link, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/bin/list2.rs:10:10 [INFO] [stdout] | [INFO] [stdout] 10 | More(Box), [INFO] [stdout] | ---- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Link` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 10 | More(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `head` is never read [INFO] [stdout] --> src/bin/list2.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct List { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 15 | head: Link, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/bin/list5.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Link` is never used [INFO] [stdout] --> src/bin/list5.rs:8:6 [INFO] [stdout] | [INFO] [stdout] 8 | type Link = Option>>; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `List` is never constructed [INFO] [stdout] --> src/bin/list5.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | struct List { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `push_left`, `pop_left`, `peek_left`, and `peek_left_mut` are never used [INFO] [stdout] --> src/bin/list5.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 15 | impl List { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 16 | fn new() -> Self <> { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | fn push_left(&mut self, value: T) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | fn pop_left(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 46 | fn peek_left(&self) -> Option<&T> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 62 | fn peek_left_mut(&mut self) -> Option<&mut T> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/bin/list9.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `Link` is never used [INFO] [stdout] --> src/bin/list9.rs:15:6 [INFO] [stdout] | [INFO] [stdout] 15 | type Link = Option>>>; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `List` is never constructed [INFO] [stdout] --> src/bin/list9.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | struct List { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/bin/list9.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 23 | impl Node { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 24 | fn new(value: T) -> Rc>> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/bin/list9.rs:36:8 [INFO] [stdout] | [INFO] [stdout] 35 | impl List { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 36 | fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | fn push_left(&mut self, value: T) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 59 | fn push_right(&mut self, elem: T) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 74 | fn pop_left(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 97 | fn pop_right(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 113 | fn peek_left(&self) -> Option> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 124 | fn peek_left_mut(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 130 | fn peek_right(&self) -> Option> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 136 | fn peek_right_mut(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `IntoIter` is never constructed [INFO] [stdout] --> src/bin/list9.rs:143:8 [INFO] [stdout] | [INFO] [stdout] 143 | struct IntoIter(List); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `into_iter` is never used [INFO] [stdout] --> src/bin/list9.rs:146:12 [INFO] [stdout] | [INFO] [stdout] 145 | impl List { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] 146 | pub fn into_iter(self) -> IntoIter { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `elem` and `next` are never read [INFO] [stdout] --> src/bin/list7.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 4 | struct Node { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 5 | elem: T, [INFO] [stdout] | ^^^^ [INFO] [stdout] 6 | next: Link, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `head` is never read [INFO] [stdout] --> src/bin/list7.rs:43:5 [INFO] [stdout] | [INFO] [stdout] 42 | struct List { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 43 | head: Link, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.58s [INFO] running `Command { std: "docker" "inspect" "9e720c5f39181dbe8082d6f538b1390a4b9404736b2a98f137f50b3f2979d749", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9e720c5f39181dbe8082d6f538b1390a4b9404736b2a98f137f50b3f2979d749", kill_on_drop: false }` [INFO] [stdout] 9e720c5f39181dbe8082d6f538b1390a4b9404736b2a98f137f50b3f2979d749